Land wire fencing

The land is rectangular, with dimensions of 38 m and 27.6 m. How many meters of wire do we need to fence it and put the wire in triplicate?

Final Answer:

o =  393.6 m

Step-by-step explanation:

$$\begin{gathered} a=38\text{m} \\ b=27.6\text{m} \\ {o}_1=2\cdot (a+b)=2\cdot (38+27.6)=\frac{656}{5}=131.2\text{m} \\ o=3\cdot o_1=3\cdot 131.2=393.6\text{m} \end{gathered}$$

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